Combination oil and gas burner



", 'MM'. F. a Fm v COMBIN'IQyt @L AND GAS BURNER u Filed JmL 5l, 1512? i? Sheew-Shw l April 7, 1,931. r. c. PANT:

GOIBINATION OIL AND GAS BURNER 2 Sheets-Sheet 2 Filed Jan. 31, 1929 lllll..

iNvENToR FRE, D c. FANTz /a-CrOLo/vw d QN ATTORNEYS Patented Apr. 7, 1931 'l :aan o. nmz, or wmssrna 1 oomsnurronorn Nn-oas numana Application mea Januaryl 31,1929.- serm no. 336,390.

My invention relates-to the art of combustion, and particularlyto burners ada ted for receiving and atomizing oil and gas or combustion purposes. y

to provide means for thoroughly and completely receiving and breaking 4up oil, mix- 1 n it with steam orair, and lnallywith gas,

- abe ore delivering it'to theburner,where 1t is 1'@ then 'againmixed vwithl air to provide' the v 1 t s an 1n e necessary oxy n for combustion.

-A further o ject is, to rovide a device of this character, whereby t e oil may be uti-y liZedseparateIy, or the gas may be used separately, orthe two may beburned together, all bem admitted and mixed with-oxygen for com i burner ti A furtliJerobject is to roduce a device of this character, where uel will be so thorou hly gasiied that t e'combustion thereof wi be substantially complete, and less car-Y bonization will result in deposits,` either in the .burner body or the ports in the burner tip, thereby providing long life and satisfactory `functioning at all times .for the burner ti s, and not necessitating changes when di erent fuels (gas and oil) are used.

A further object is,.to rovide a device whereby the oil used will' i torn apart and'broken up as-toinsure a more com lete combustion, thereb eliminating theclogging'and urning oil? of the burnertip as is customary in most burners. f

My invention consists of certaindetails of construction hereinafter .set forth, pointed out in my claims, and illustrated in the accompanymg drawings, in which- Fig. 1 is aside elevation of my stalled in a `boiler furnace, part of same be ingrbroken away and sectioned;

ig. 2 is a longitudinal cross-section of the burner, taken on line 2-2 in Fig. 1; and

Fi 3 is a cross-section, taken on line 3-3 of Flg. 2, showing'valve control.

Similar reference numerals refer to similar parts, throughout the entire description.

My device comprises four principal arts, 1, 5,0 to yreceive a combination of oil and gas, reak lthe burner tips, where it mixes with o My invention has for its principal object,

ustion purposes, 4through the same' so completely practically -k upv the particlesof oil, thoroughly oil with steam and air, and deliver 1t through gen yfor combustion purposes. The device itself is rincipally, adapted for use in boilers, stil s, furnaces and combustion chambers in general, and is especially designed for and" adapted to the burning of poor grade fuel and high'gravity oil.

The mixing head 10 which I employ, has assage 11 to receive the oil to be converte y into a combustible vapor, a passage 12 to receive the steam or air tobe lnjected into themixing chamber to assist in breaking `up and vaporizin the oil, and a passage 13 to receive gas to delivered to an expansion or gasifying chamber where it mixes with the vaporizyed koil being projected from the mixing chamber. The passages 11 and 12 are, as shown in the illustration accompanying this specification, substantially parallel, spaced apart, and extend into the mixing mix the l onovns, Missouri, AssIGNon To n. A'. ammo, or c nrcnedrrnmors l head lO'beyond the center thereof. A nozzle 14,dprovided with a port 15, is connected with, an to, the -oil passagell. In the structure shown in the drawings, this nozzle 14 pro- -jectsr through the vsteam passage 12, and

through a screw-threaded orifice 16 in the wall surrounding the said'steam passage 12. A. cylinder 17 -is secured in the wall surrounding'the screw-threaded orifice 16, the cylinder 17 receiving at its lower end the nozzle 14 which, obviously, is centrally located', concentrically, within the end of said cylinder 17. The cylinder 17 is open at both ends, and at its inner end communicates with 'the steam or air passage 12, thus providing for air received through the passage 12 entering into the cylinder 17. A corrugated spiral` element 18, its walls contacting the inner wallof the cylinder 17, is mounted WithinV said cylinder 17 A cylinder 19 surrounds,

vand extends outwardly beyond, the cylinder 17 and is seated in the mixing head 1G so that the lower end of said cylinder 19 opens into the gas passa e 13. Obviously, the c linderv 19 is eve y spacedfconcentrical y, from the outer wa l of the cylinder 17 and in the outer end of the cylinder 17 I have mounted "a burner tip 20.

The burner, the functioning of which will be hereinafter explained, is designed to project into a combustion space 21, and in order vice, which functions in connection with the burner which has been hereinbefore described. This air-delivering device, which ma be termed an air register, consists of a body portion 22, which completely its within the openin in the combustion chamber 21 throu h w ich the burner top 20 projects.V

This y portion 22 has an opening 23, or a plurality of openings if desired, to the outside air, to receive air from the outside of the combustion chamber 21 and convey it to the burner tip 20. l

My urpose is, so to deliver this outside air to t e burner tip 2O as to provide for complete combustion of the gas going therethrough, and to that end I provide vanes 24, around which the air coming through the openings 23 must pass, these vanes 24 imparting a whirling motion to the air.` This whirling air or oxygen is delivered through or around openings 1n a grid 25, passes over the burner tip 20, and provides complete and satisfactor delivery of oxygen over the burner tip 20, fdr combustion. My air register is so constructed that it has an adjustable element 26, which ma be positioned through the medium of trave ing screw 27, operated by gear 28 seated in part 29 and manipulated by the operator, to enlarge or reduce the size of the air sire or nee of t e operator.

In practical operation, oil is delivered through the passage 11 and nozzle 14 into the cylinder 17. Obviouslythis delivery is under t e desired pressure. team or air, also under pressure is at the same time. delivered to the cylin er 17 through the passage 12, and mixes with the incoming oil. The incoming oil, mixed with the steam or air, is thrown against the corrugated spiral 18 which, by reason of its spiral formation, imparts a whirling motion to the oil and steam, throwing it a ainst the inner wall of the cylinder 17, whix operates to break up the particles of oil. In addition to this, the oil particles are continually being thrown against the corrugations in this spiral element 18, which further operates to'break up the oil particles. The result of this is, that the oil, in passing through the cylinder 17, which I term my mixing chamber, is completely and en tirely broken up and all solids atomized, so that the resultant va or which is projected from the outer end ofthe cylinder 17 is free from solids and particles, residue and the like. As this vapor is projected from the end of the cylinder 17 it enters the cylinder 19 which, as hereinbefore described, is connectassa es 23 according to the deed with the gas passage 13. When the oil and the steam are being delivered to the mixing chamber 17, as hereinbefore described, the two iiuids-the natural gas coming through the passage 13, and the vaporized oil and steam coming through the -mixing cylinder 17-are completely mixed in the end of the cylinder 19 before being projected through the ports in the burner tip 20. This end of the cylinder 19, wherein the natural gas and the vaporized oil and steam are mixed, I have termed my expansion chamber 30.

As the gas thus formed by vaporizing the oil and steam and mixing it with the gas, is thrust out from the ports in the burner tip 20, it is there met by the whirling oxygen which is coming in through the orifices 23 in the air register, and this provides for complete and satisfactory combustion.

Having thus described my invention, what I claim, and desire to secure by Letters Patent of the United States, is:

1. A burner for fuel composed of gas' and vaporized oil and air or steam, comprising a mixing head with passages therein to receive the gas, the oil, and the steam or air; a cylinder seated in the mixing head to receive the incoming oil and incoming steam or air; a spiral element secured in said cylinder; a second cylinder, also seated in the mixing head, and concentrically spaced from and surrounding the first cylinder, to receive the incoming gas; and a lournei` tip in the end of said second cylinder.

2. A burner for fuel composed of gas and vaporized oil and air or steam, comprising a mixing head with passages therein to receive the gas, the oil, and the steam or air; a cylinder seated in the mixing head to receive the incoming oil and incoming steam or air; a corru ated spiral element secured in said cylin er; a .second c linder, also seated in the mixing head, an concentrically spaced from and surrounding the-first c lmder, to receive the incoming gas' and a b in the end of said second cylinder.

3. A burner for fuel composed of gas and vaporized oil and air or steam, comprising a mixing head with passages therein to receive the gas, the oil, and the steam or air; a cylinder seated in the mixing head to receive the incoming oil and incomin steam or air; a second cylinder, also seate in the mixing head, and concentrically spaced from and surrounding the first cylinder, to receive the incoming gas; a burner tip in the end of said second cylinder; and means to deliver air over the end of the burner tip.

4. A burner for fuel composed of gas and vaporized oil and air or steam, comprising a mixing head with passages therein to receive the gas, the oil, and the steam or air; a cylinde;` seated in the mixing head to receive the incoming oil and incoming steam or air; a second cylinder, also seated in the mixurner tip tion to the air delivered out over the ing head, and concentrically spaced from and surrounding the first cylinder, to receive the incoming gas; a burner tip in the end of said second cylinder; :in air register surrounding the said second cylinder; and a spiral element in said air register to impart a. whirling; mo-

er tip. 5. A burner for fuel composed of gas an vaporized oil and nir or steam, comprising a mixing head with passages therein to receive the gas, the oil,` and the steam or air; a cylinder seated in the mixing head to receive the incoming oil'and incoming steam or air; a Spiral element secilred in said cyl- Y inder; n second cylinder, also-seated in the mixing head, and spaced from and surrounding the first cylinder, to receive the incom- .ing gas; u burner tip in the end of said second cylinder; and means to deliver air over the end of the burner tip. n

6. A burner for lfuel composed of gas and vnporized oil and air or'steam, comprising 'a mixing head with passages therein to re- Vceive the gas,-the oil, und the steam or air; a

cylinder seated in the mixing head to receive f the incoming oil und incoming steam or air;

:i spiral elementJ secured in said cylinder; a, second cylinder, also sented in the mixing head, and spaced from andsurrounding the first' cylinder, to receive the incoming gas; a burner tip inthe end of sJ-id second cylinder; an air register snrrfoundin'g the said second cylinder; and :i spiral element in said air register` to impart a whirling motion to the air delivered out over the burner tip.

FRED A C. FANTZ.

urn- 

